In this chapter, you were introduced to the issues involved in implementing an app in .NET using the MVVM pattern. First, you were given the high-level goals of the pattern, next a brief description of the pattern, then the ways MVVM is implemented without a toolkit, and lastly, you were introduced to MVVM Light, which is a toolkit that greatly simplifies issues related to SoC, maintainability, and so on. With this introduction to MVVM Light, you now have the skills and tools to explore the pattern and apply it to your app.
In the next chapter, we're going to do a deeper dive into maps and layers. We will discuss projections and coordinates systems, MapGrid, extents, layers, and how to use online and offline content.